Question

9. Efectuați: a) 3-(-7+2)+(-5)+(-3-1+4)-(-7)=; b)-7-(3+2-6-1)+(-6+3-1)=; c) 5+(2–8–3)-(-9+7)+(-3)-2+1 =; d) -15+(-3+2-1)-(-7+5-2-9)=; e) 6+(3+8)+(-6)+(-6--12+3-1)=; f)-24-8+6--13+11-1)-(-2) = .​

Answer 1

Explicație pas cu pas:

a) 3-(-7+2)+(-5)+(-3-1+4)-(-7)=

3+7-2-5+0+7

10-7+7= 10

b) -7-(3+2-6-1)+(-6+3-1)=

-7-3-2+6+1-6+3-1= -9

c) 5+(2-8-3)-(-9+7)+(-3)=

5+2-8-3+9-7-3-2+1= -6

d) -15+(-3+2-1)-(-7+5-2-9)

-15-3+2-1+7-5+2+9= -4

e) 6+(3+8)+(-6)+(-6-12+3-1)

6+3+8-6-6-12+3-1= -5

f) -24-8+6-13+11-1-(-2)

-24-8+6-13+11-1+2= -27

Sper că te-am ajutat!!!!